title: Utility and validity of the STAI with anxiety disorder patients.
abstract: Factor analytic studies of the State-Trait Anxiety Inventory (STAI) have provided support for the concepts of state and trait anxiety. This article reports the factor structure of the STAI (Form X) using 205 panic-disordered patients with and without agoraphobia. Results show that a two-factor oblique solution is the most appropriate, accounting for 41.1 per cent of the variance. Eighteen of the A-State items had salient loadings on factor 1 (state anxiety) and all 20 of the A-Trait items had salient loadings on factor 2 (trait anxiety). This study demonstrates the utility of the STAI in measuring anxiety in clinical populations and further supports the theoretical distinction between state and trait anxiety.
authors.affiliation: Anxiety Disorder Clinic, University of Queensland, Brisbane, Australia.
authors.forename: T P
authors.initials: TP
authors.lastname: Oei
authors.forename: L
authors.initials: L
authors.lastname: Evans
authors.forename: G M
authors.initials: GM
authors.lastname: Crook
mesh_terms: D000293:Adolescent; D000328:Adult; D000379:Agoraphobia / Q000175:diagnosis / Q000523:psychology; D001008:Anxiety Disorders / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010200:Panic; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011594:Psychometrics; D015203:Reproducibility of Results